Most fans of science fiction and comic books just want to enjoy their hobby in peace, or maybe one day don a costume and save the world. But every now and then, a fan turns to the Dark Side instead.

Syndrome (The Incredibles)

You, sir, truly are Mr. Incredible! You know, I was right to idolize you. I always knew you were tough, but tricking the probe by hiding under the bones of another super?! Oh, man! I'm still geeking out about it!

Fannish Traits: Fashioning himself as Mr. Incredible's sidekick Incredi-Boy for one, but even the business of making the ultimate superhero-killing machine and luring Mr. Incredible to his island lair to fight it was fannish in its own warped way.What Drove Him to Evil: A demoralizing rejection at the hands of Mr. Incredible left him with a inferiority complex and bitter grudge against the superpowered community.

Henchman #21 (The Venture Bros.)

Dude I can't believe we didn't get blown up. We're like those guys on TV who never get shot. Yeah we're like main characters.

Fannish Traits: He keeps a closet full of collectible weapons, has a side job with the Atomic Comic Collection Connection, and debates whether the Smurfs are mammals. Fortunately, #21 lives in a comic book world, and his genre savvy is one of the things that keeps him alive.What Drove Him to Evil: #21 was actually kidnapped and pressed into the Monarch's service at age 15, but he keeps up his henching because he finds it kind of awesome.

The Trio (Buffy the Vampire Slayer)

Warren: What the hell is that?
Andrew: Death Star, dude! Wicked, huh?
Jonathan: Uh, thermal exhaust port's above the main port, numbnuts.
Andrew: For your information, I'm using the Empire's revised design from Return of the Jedi.
Jonathan: That's a flawed design!

Fannish Traits: In addition the van with the Death Star mural, dialogue amongst the Trio (Andrew and Jonathan in particular) is a constant stream of science fiction and comic book references (notably, Jonathan claims fluency in Klingon). And their attempts at bank robbery and Slayer killing are pretty much straight out of the supervillain handbook.What Drove Them to Evil: Repeated social, scientific, and mystical missteps, which required the Scooby Gang's constant meddling. That, and they hoped it would get them girls.

Superboy-Prime (DC Comics)

On my Earth, I read all about you, Polar Boy. You were a substitute Legionnaire who was let into the clubhouse because people felt sorry for you. Y'know, I almost feel sorry for you. Almost.

Fannish Traits: Raised in our universe reading comic books (and named after Clark Kent), Superboy-Prime is so distraught with the current direction of the DC Universe, that he tries to retcon the universe so it resembles the DC comics of his childhood.What Drove Him to Evil: Pretty much the entire DC writing staff.

Control Freak (Teen Titans)

All these would've worked on the real Titans. It's just, your powers are... stupid! I don't wanna fight you anymore.

Fannish Traits: It's no surprise that, with his obsession with science fiction and television, Control Freak becomes an accidental fan of the Titans themselves. He's genuinely miffed when he has to face off against the Titans East instead of the main Teen Titans, and he's pissed when he realizes he's not on the list of their most notorious villains — after all, he's a recurring character.What Drives Him to Evil: Mostly, because villains look cool.

Joe Jackson Stevens (Powers)

Every time they report about her, they ruin her. Every time they say her name, they chip away at her soul. The Indians say that a photograph steals your soul. Imagine if they are right. The world has no rights to her soul. If only I could get her attention.

Fannish Traits: Despite an avowed hatred of capes, Stevens has a profound obsession with Retro Girl, as evidenced by his diary entries and some rather sticky photos found in his apartment.What Drove Him to Evil: Stevens is just plain unbalanced. He goes Mark David Chapman on Retro Girl because he wants to preserve her unblemished memory for the masses.

Red Mist (Kick-Ass)

Seriously. This whole superhero thing's been bubbling away for years, but you were the first to get out there and have the balls to do it, man. I'm your biggest fan. This is like meeting Elvis or something.

Fannish Traits: Mist claims to be such a huge fan of Kick-Ass (and superhero comics), that he follows Kick-Ass's lead and dons a ridiculous red suit to fight crime.What Drove Him to Evil: It's not clear that Red Mist was ever on Kick-Ass's side, but whatever the case, he was probably getting paid good money to turn on his fellow vigilante.

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Tim the Fanboy (Fans!)

These guys are the president and vice-president of a very cool club! They've fought a vampire, a mind-control conspiracy, and an ancient god! Share in the coolness! Join now!

Fannish Traits: Whereas most members of Bilberg University's Science Fiction Club are fans of science fiction, Tim is a devotee of the Club itself, turning down a spot at Harvard so he could worship at their feet. That, and he dresses like Harry Potter.What Drove Him to Evil: Tim tends to become utterly devoted to a cause, only to turn on it completely when it lets him down in the slightest. When the Science Fiction Club is overwhelmed by the time traveling warlord General Maximillianna, Tim decides that she must be the superior moral force, and quickly joins her forces.

Ray Thompson (Justice League "Legends")

"Holy hijacking, Catman!"

Fannish Traits: Ray is so nostalgic for the superheroes of his childhood, that after they perished in a nuclear holocaust, he psychically resurrects them so they can continue their adventures.What Drove Him to Evil: The sole survivor of the nuclear holocaust, Ray just wants to recreate the world of his idealized childhood. But when his illusion is shattered, he goes on a rampage that threatens to destroy reality.

The Mad Hatter (Batman)

As the great Lewis Carroll said: "One, two, one, two, and through and through the vorpal blade went snicker-snack! He left it dead, and with its head, he went galumphing back!"

Fannish Traits: Jarvis Tetch is so obsessed with Lewis Carroll's Alice books that he dresses as the Mad Hatter, only eats hat-themed food, and constantly quotes Carroll.What Drove Him to Evil: Psychosis. The Hatter has trouble distinguishing between Wonderland and reality, and has developed a frightening obsession with girls named Alice.

Mock Turtle (Astro City)

There was Narnia, with Caer Paravel. And Alice's Wonderland. And more. And children could find them, children like me. If I could find the right wardrobe, go through the right looking glass —

Fannish Traits: Like the Batman villain above, Martin Chefwick was obsessed with fantasy realms, including Wonderland, Narnia, and Oz. And, while he didn't mistake the real world for Wonderland, as a child he often went off in search of a gateway to a fantastical realm all his own.What Drove Him to Evil: He wanted to impress a girl.

Stewie Griffin (Family Guy "Not All Dogs Go to Heaven")

No way, I'm getting Patrick Stewart to sign it. Picard has it all over Kirk. He's poised and measured and doesn't wear a cheap rug. Rather, he accepts even baldness with a quiet cool that says, "I am in command. You are safe with me. I will cradle you in my arms through any crisis in any galaxy."

Fannish Traits: From our list of convention disasters, Stewie built a working transporter for the sole purpose of kidnapping the entire cast of Star Trek: The Next Generation.What Drove Him to Evil: Stewie has always been evil, but in this case, he was simply annoyed he didn't get to ask his question at the convention.

Fry: Melllvar's got a spaceship.
Melllvar: Yes, in mint condition... and you made me take it out of the package!

Fannish Traits: Another from our convention disasters list, Melllvar creates a paradise for the cast of the original Star Trek so he can hold his own private convention. Then he makes them battle the Planet Express crew to the death for his fanboy affection.What Drove Him to Evil: Non-corporeal beings only seem evil until you learn that they're harmless 34 year-olds still living in their parents' basements.

Ben Meyers (Smallville "Action")

I'm sorry, Lana. But there's a hero living among us, and there's only one way he'll accept his calling. You need to die.

Fannish Traits: A fan of the Warrior Angel comic books, Meyers is upset when he learns that the hero's love interest won't die in the film adaptation like she does in the book. To maintain the purity of the movie, Meyers decides to simply kill off the actress playing the love interest himself. And, when he discovers Clark's unusual abilities, he believes Lana must endure the same fate.What Drove Him to Evil: Hollywood's obsession with happy endings.

Mysterious Fan Boy (X-Statix)

If we're really being honest here, and I hope we are, I'd started to love the new X-Force, even though their high mortality rate did unsettle my bowels. And now they go and change the whole thing. If that was all they'd done I might be able to forgive them. But they have done the unforgivable. They've killed the best of them. I mean, how do those people expect us fans to react?

Fannish Traits: Arnie Lundberg wears his fandom proudly. He is such a huge fan of X-Force in general and U-Go Girl in particular that when his favorite team member gets killed off, he takes an entire town hostage, controlling and disfiguring its citizens, a la the Twilight Zone episode "It's a Good Life."What Drove Him to Evil: A combination of childhood taunting, relative omnipotence, and U-Go Girl's death. But it all works out for him since he joins the newly renamed X-Statix team so they can keep an eye on him.

Fannish Traits: There's very little in the Comic Book Guy's life that doesn't center around fandom. And, in the Treehouse of Horror episode "Desperately Xeeking Xena," he becomes a villain known as "The Collector," who steals his favorite celebrities and places them in PET bags for safe keeping.What Drove Him to Evil: The desire to preserve his favorite actors in mint condition.

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The Catgirl Menace (Something Positive)

I'm tired of you comic creators thinking just because you make something you own it! You don't! It's ours the minute we read it! And the fans know better than you do what's right, otherwise we'd be making comics, not reading them!

Fannish Traits: Not precisely scifi, but too powerful to be ignored, the Catgirls walk around in adorable cat ears and will read anything with the word "Neko" in the title.What Drove Them to Evil: Someone dissed their obsession du jour, Neko Neko Holy-Chan. Fortunately, they lost interest when they realized the comic creators were changing the comic in a way that disagreed with their fan fiction and shattered their little yaoi fantasies. Some creators just like their straw fans to smack you in the face.